| Patents for C22B 21 - Obtaining aluminium (4,001) |
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| 03/11/1998 | CN1175681A Continuous melting apparatus for low-melting point metal, improved crucible for such apparatus, and melting method using such apparatus |
| 03/05/1998 | WO1998008990A1 Rotary degassing apparatus with rotor grip coupling between impeller rotor and drive shaft |
| 03/03/1998 | US5723097 Method of treating spent potliner material from aluminum reduction cells |
| 02/26/1998 | WO1998007496A1 High capacity filter |
| 02/17/1998 | US5718742 Maximizing shear forces for improved processing |
| 02/17/1998 | US5718416 Lid and containment vessel for refining molten metal |
| 02/12/1998 | WO1998005915A1 Rotary gas dispersion device for treating a liquid aluminium bath |
| 02/12/1998 | WO1998005411A1 Non-polluting method for regenerating ceramic parts used in aluminium casting |
| 02/11/1998 | CN2274191Y Directional crystallizer for production of finished aluminium |
| 02/05/1998 | WO1998004372A1 Gas injection pump |
| 02/04/1998 | EP0821743A1 Cooling system for press head |
| 01/21/1998 | EP0819770A1 Rotary impeller with porous head for dispersing gas treatment of molten metal |
| 01/20/1998 | US5709834 Device for removing gas and impurities from the molten aluminum |
| 01/14/1998 | EP0818547A1 Recovery of metals values from air bag inflators |
| 01/14/1998 | EP0728222B1 Compact molten metal processing ladle |
| 01/08/1998 | DE19627059A1 Method and apparatus for treating aluminium melts |
| 01/07/1998 | EP0815271A1 Fast quench reactor and method |
| 01/06/1998 | US5705123 Metal chip reclamation system |
| 12/29/1997 | EP0814171A1 Aluminum alloy casting |
| 12/29/1997 | EP0813922A1 Vacuum die-casting machine and method |
| 12/18/1997 | WO1997047776A1 Dross compression apparatus and method utilizing ribs on collector and head |
| 12/17/1997 | EP0812244A1 Apparatus and method for lubricating and cleaning out die-casting equipment |
| 11/26/1997 | CN1166198A Metal fusion furnace and metal fusing method |
| 11/18/1997 | US5688470 Apparatus for recovery of non-ferrous metals from scrap and dross |
| 11/12/1997 | EP0805980A1 Device for determining the purity of a metal alloy |
| 11/06/1997 | WO1997041269A1 Process for the recovery of aluminium and energy from used packages of the 'tetrabrick' type and oven for implementing such process |
| 11/06/1997 | WO1997041064A1 Concentration of solids in the bayer process |
| 11/06/1997 | DE19711764A1 Recycling and recovering metallic components of composites |
| 11/05/1997 | EP0728221B1 Process for combined decoating and melting of aluminum scrap contaminated with organics |
| 10/29/1997 | CN1163315A Method and device for extracting liquid light metal from dispersed mixture |
| 10/23/1997 | WO1997039155A1 Recovery of metal from dross |
| 10/21/1997 | US5678807 Rotary degasser |
| 10/08/1997 | CN1036076C Agent for covering during aluminium-melting, and method for producing same |
| 10/07/1997 | US5673900 Reclamation of metal from scrap |
| 10/07/1997 | CA2023753C Method for gas treatment of a wide surface aluminium bath maintained in a stable state in the furnace |
| 10/02/1997 | DE19612094A1 Directly recycling aluminium@ content of engine blocks |
| 09/23/1997 | US5669957 Recovering aluminum |
| 09/16/1997 | US5667685 Filter for the filtration of molten aluminum |
| 09/10/1997 | CN1158914A Method for manufacturing aluminum from aluminum hydroxides containing silicic acid, titanic acid and iron |
| 09/02/1997 | US5663478 Recovery of aluminum and/or fluoride values from used aluminum chlorofluorides |
| 08/26/1997 | US5660614 Supplying gas flow through rotating dispenser immersed in stirred molten metal flow; degassing, purification |
| 08/21/1997 | DE19605532A1 Small dross heating and compaction unit |
| 08/14/1997 | WO1997028901A1 Method and device for separating particles from an electrically conductive liquid flow using electromagnetic forces |
| 08/12/1997 | US5656236 Apparatus for gas treatment of molten metals |
| 08/12/1997 | US5656235 Through airlock for refining furnance |
| 08/06/1997 | EP0787810A1 Aluminium remelting furnace, in particular for melting aluminium scrap to be recycled |
| 08/06/1997 | CN1156483A Method and apparatus for used aluminum can recycling |
| 07/30/1997 | EP0786530A1 Process and apparatus for the recovery of liquid light metal from a dispersed mixture |
| 07/30/1997 | EP0786015A1 Molten metal treatment |
| 07/30/1997 | CA2196112A1 Process and device for obtaining fluid light metal from a dispersed mixture |
| 07/24/1997 | WO1997026382A1 Press head and dross pot for dross processing system |
| 07/23/1997 | EP0725840B1 Ladle for filtering liquid metal on a filter medium with improved heating |
| 07/17/1997 | DE19601200A1 Method of producing aluminium (alloys) electrolytically |
| 07/16/1997 | EP0784193A1 Metal fusion furnace and metal fusing method |
| 07/03/1997 | WO1997023309A1 Method and apparatus for reclaiming empty can of aluminum |
| 07/02/1997 | EP0627014B1 Recovery of non-ferrous metals from dross |
| 06/25/1997 | EP0780481A1 Method and installation for the recovery of aluminium from wastes and residues |
| 06/18/1997 | EP0779371A1 Method and plant for the pretreatment of waste and scrap containing aluminium befor a thermal treatment |
| 06/05/1997 | DE19539621C1 Gas injection stirrer for refining molten light metal |
| 05/22/1997 | WO1997018456A1 Filtration apparatus and method of characterising molten materials |
| 05/20/1997 | US5630863 Reversing direction of disperser rotation, aluminum |
| 05/15/1997 | WO1997017476A1 Use of a process for melting small pieces of light metal scrap |
| 05/15/1997 | DE19541993A1 Anwendung eines Verfahrens zum Behandeln von Metallschmelzen Using a procedure for treating metal melts |
| 05/09/1997 | WO1997016576A1 Production of metal such as aluminium, magnesium, silicon and the like from metal oxide compounds |
| 05/07/1997 | EP0771364A1 Recovery of non-ferrous metals from dross |
| 05/06/1997 | US5626664 Metal agglomerates with fly ash, coke or blast furnace flue gas dust |
| 04/29/1997 | US5624646 Method for improving the brightness of aluminum hydroxide |
| 04/23/1997 | CN1148094A Method and apparatus for smelting aluminum, scrap and remainders containing aluminum |
| 04/09/1997 | CN1146973A Process for production of nm. alumina |
| 04/09/1997 | CN1034518C Refining chamber lined with themral insulation refractory material for molten aluminium refining |
| 04/01/1997 | US5616191 Method for making a high purity aluminum conductor used at ultra low temperature |
| 04/01/1997 | US5616167 Method for fluxing molten metal |
| 03/26/1997 | EP0643779B1 A method of treating dross materials in metallurgical melting processes |
| 03/25/1997 | US5613996 Process for treatment of reactive fines |
| 03/19/1997 | CN1145411A Improved gas dispersion apparatus for molten aluminum refining |
| 03/18/1997 | CA2074258C Method and device for recovery of scrap goods |
| 03/04/1997 | US5607505 Waste treatment process |
| 02/27/1997 | WO1997006876A1 Process for reducing the dioxin and furan content in waste gases from furnaces, and use of the filter dusts produced thereby |
| 02/27/1997 | CA2225654A1 Process for reducing the dioxin and furan content in waste gases from furnaces, and use of the filter dusts produced thereby |
| 02/26/1997 | CN1143684A Aluminum melting with reduced dross formation |
| 02/20/1997 | WO1997006394A1 Metal fusion furnace and metal fusing method |
| 02/13/1997 | DE19621492A1 Verfahren zur Verminderung des Dioxin- und Furangehaltes in Ofenabgasen und Nutzung der dabei anfallenden Filterstäube A method of reducing dioxin and Furangehaltes in kiln exhaust gases and use the resulting filter dusts |
| 02/05/1997 | EP0757013A1 Apparatus for purifying metal |
| 02/05/1997 | EP0756644A1 A method for manufacturing castable metal matrix composite bodies and bodies produced thereby |
| 02/04/1997 | US5599379 Introducing inert gas into container with hot dross to impede thermiting and limit cooling of dross |
| 01/29/1997 | EP0756014A1 Method and apparatus for smelting aluminum, scrap and remainders containing aluminum |
| 01/28/1997 | CA2181773A1 Method and apparatus for smelting aluminium, scrap and remainders containing aluminium |
| 01/22/1997 | EP0754090A1 Method for obtaining secondary aluminium |
| 01/15/1997 | EP0753589A1 Melt treatment head, apparatus and method |
| 01/15/1997 | EP0753491A1 Process for treatment of reactive fines |
| 01/15/1997 | CN1033823C Improved heater arrangement for aluminium refining systems |
| 01/14/1997 | US5593634 Gas treatment of molten metals |
| 12/18/1996 | EP0748993A1 Aluminum melting with reduced dross formation |
| 12/17/1996 | CA2021638C Decontamination and/or surface treatment of metals |
| 12/12/1996 | WO1996039545A1 Method and apparatus for continuous in-line gas treatment of molten metals |
| 12/05/1996 | WO1996038220A1 Process for recovery of metal ions |
| 12/04/1996 | EP0745693A1 Method of refining a melt of aluminium scrap melt and aluminium alloy obtained from the refined melt |
| 12/04/1996 | EP0745144A1 Method and apparatus for recovery of non-ferrous metals from scrap and dross |
| 12/01/1996 | CA2177666A1 Method for refining an aluminium scrap smelt, and aluminium alloy from refined aluminium scrap |
| 11/20/1996 | EP0742842A1 Gas treatment of molten metals |